Concertmate900 by Radio Shack. No power supply. Has batteries. Takes 9 volt power supply. Probably can get at goodwill. Call 936-585-3973 This is Dan and this is my new cell number for those who know me and for those who dont. You can copy and paste my number in the search and see all I have f

Concertmate - 900 SeriesThis is an older model, but this keyboard has hardly been played.This keyboard makes an excellant instrument for beginner students.All of the functions work fine. Location Longmont